Magento 2 error Current version of RDBMS is not supported. Used Version: 10.1.37-MariaDB. Supported versions: MySQL-8, MySQL-5.7, MariaDB-(10.2-10.4)
n alternative solution if you are in a bind.
Edit file app/etc/di.xml
You can specify acceptable MariaDB versions here – currently 10.2-10.4
Example to allow MariaDB 10.5
<item name="MariaDB-(10.2-10.5)" xsi:type="string">^10\.[2-5]\.</item>